Finding the Fourth Proportional to 6,489,659.94, 8,956,854.90 and 3,911,344.08
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Solution
The fourth proportional to 6,489,659.94, 8,956,854.90 and 3,911,344.08 is: 5,398,332.38
Step by Step Solution
- Step 1: Write the proportion equation
6,489,659.94 : 8,956,854.90 = 3,911,344.08 : x - Step 2: Convert to fraction form
6,489,659.94/8,956,854.90 = 3,911,344.08/x - Step 3: Cross multiply
6,489,659.94x = 8,956,854.90 × 3,911,344.08 - Step 4: Simplify right side
6,489,659.94x = 35,033,341,388,533.99 - Step 5: Solve for x
x = 35,033,341,388,533.99/6,489,659.94 - Step 6: Final answer
x = 5,398,332.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.